| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 04/23/1997 | CN2252811Y Beverage mineralizing and magnetizing tube |
| 04/23/1997 | CN2252810Y High efficiency reactor for nonferrous metal wasted water treatment |
| 04/23/1997 | CN2252809Y Electrical dialysis water treatment unit |
| 04/23/1997 | CN2252808Y 高效净水芯 Efficient water purification core |
| 04/23/1997 | CN2252807Y Compound filtering core of water purifier |
| 04/23/1997 | CN2252806Y Purifying device of water kettle |
| 04/23/1997 | CN2252805Y Water making control structure of water purifier |
| 04/23/1997 | CN1148040A Recovery and treatment of mother solution of mono sodium 2-naphthylamine-5,7 disulfonic acid |
| 04/23/1997 | CN1148032A Method for treating high concentration waste water difficult to be bio-oxidized |
| 04/23/1997 | CN1148031A Water purification process and its apparatus |
| 04/23/1997 | CN1148030A Waste water treatment method and apparatus |
| 04/23/1997 | CN1148029A Method for treating waste water contg. ammonia and zinc from dry cell factory |
| 04/23/1997 | CN1147971A Water purifying apparatus |
| 04/23/1997 | CN1147901A Method for producing protein fodder from waste protein liquid |
| 04/22/1997 | US5622848 Electrically hydrolyzed salines as microbiocides for in vitro treatment of contaminated fluids containing blood |
| 04/22/1997 | US5622647 Using a diallyldimethylammonium chloride copolymer as coagulant |
| 04/22/1997 | US5622631 Recirculation of wash water to the photoprocessing operation via a silver recovery system; wash water is periodically discharged to waste and preferential amount of fresh water is added to reduce thiosulfate ions in wash water |
| 04/22/1997 | US5622630 Apparatus for and method of treatment of media containing unwanted substances |
| 04/22/1997 | US5622627 Purification comprising degreasing, filtering out particles and heavy metals |
| 04/22/1997 | US5622622 Ultraviolet sterilizer and source of ionized molecules for electrocoalescent/magnetic separation (ECMS) removal of contaminants from water streams |
| 04/22/1997 | US5622610 Water processing method and apparatus |
| 04/22/1997 | US5622605 Heating in a boiler; removal concentrated brines; expansion of steam across a turbine |
| 04/22/1997 | US5622533 Vinylamine copolymer coagulants for use in coal refuse dewatering |
| 04/22/1997 | CA2018392C Highly concentrated aqueous suspension of minerals and/or fillers and/or pigments |
| 04/17/1997 | WO1997013726A1 Biological method of treating sewage containing high concentrations of sludge |
| 04/17/1997 | WO1997013725A1 Sewage process method |
| 04/17/1997 | WO1997013722A1 Salt extraction process and device |
| 04/17/1997 | WO1997013577A2 Flow reactor with capillary flow channels |
| 04/17/1997 | WO1997013568A1 Non-fouling, flow-through capacitor, system and method of separation |
| 04/17/1997 | WO1997013555A1 Electrochemical cell for processing organic wastes |
| 04/17/1997 | WO1997013554A2 Process for decomposing stable organic pollutants |
| 04/17/1997 | DE19626383A1 Neutralisation plant mixes acid and alkaline effluents |
| 04/17/1997 | DE19604659C1 Waste water purification bio-reactor |
| 04/17/1997 | DE19538014A1 Removal of organic liquids, e.g. oil or petrol, from water |
| 04/17/1997 | DE19537840A1 Process and arrangement for treatment of lime-containing water by application of alternating field |
| 04/17/1997 | DE19537828A1 Electrolysis reactor for processing industrial waste water |
| 04/17/1997 | DE19537698A1 Biologische Abwasserreinigung bei hohen Schlammkonzentrationen Biological wastewater treatment sludge at high concentrations |
| 04/17/1997 | CA2234559A1 Biological waste water treatment at high sludge concentrations |
| 04/16/1997 | EP0768279A1 Method of and apparatus for electrolyzing water |
| 04/16/1997 | EP0768278A1 Wastewater treatment method by atomizing and freezing |
| 04/16/1997 | EP0767698A1 COMPOSITION AND IMPROVED pH DRIVEN METHOD FOR WASTEWATER SEPARATION USING AN AMPHOTERIC CARBOXYLATE AND A CATIONIC DESTABILIZER COMPOSITION |
| 04/16/1997 | EP0767677A1 Electrically hydrolyzed salines as in vivo microbicides for the treatment of cardiomyopathy and multiple sclerosis |
| 04/16/1997 | EP0739312A4 Bottle water disinfection system |
| 04/16/1997 | CN2252185Y Valve ozone water purification sterilizer installing on running water pipe |
| 04/16/1997 | CN2252184Y Independent mineralized anti-scale magnetizer |
| 04/16/1997 | CN2252183Y Pure water manufacturing machine with parts locating device |
| 04/16/1997 | CN2252058Y 流体磁化器 Fluid magnetizer |
| 04/16/1997 | CN1147802A Electrolytic water treatment |
| 04/16/1997 | CN1147801A Process for removing polluting material from water or wet solid matter |
| 04/16/1997 | CN1147755A Micronutrient supplement |
| 04/16/1997 | CN1147483A Leaching process |
| 04/16/1997 | CN1147482A Device for removing screened material from liquid flowing in flume |
| 04/16/1997 | CN1034555C Apparatus for treating absorbent liquid from waste gas desulfuration device |
| 04/15/1997 | US5620629 Silica sol, water soluble cationic polymer |
| 04/15/1997 | US5620610 Mixed oxide catalyst optionally containing a metal or compound of a metal |
| 04/15/1997 | US5620609 Filling elongated body with suspension, allowing to settle, directing ray of light to liquid surface at angle, positioning collector to receive scattered light, measuring at different times to determine rate of change |
| 04/15/1997 | US5620607 Filtering fluidized bed reactor |
| 04/15/1997 | US5620597 Non-fouling flow-through capacitor |
| 04/15/1997 | US5620595 Swimming pool or like aqueous system containing an imidazolium, pyrazolium or triazolium salt as sanitizer |
| 04/15/1997 | US5620593 Multi-stage in-well aerator |
| 04/15/1997 | US5620587 Electrolyis of water to produce cathodic water and adding an aqueous solution with chitin chitosan dissolved in it to cathodic water; dechlorination |
| 04/12/1997 | CA2187568A1 Peroxide water treatment process |
| 04/10/1997 | WO1997013041A2 Combined water purifier/dispenser and walk-in cooler |
| 04/10/1997 | WO1997012672A1 Composite metal oxide adsorbents |
| 04/10/1997 | DE19545660C1 Removing heavy metals from waste water using ferri- or ferromagnetic particles |
| 04/10/1997 | DE19536971A1 Strömungsreaktor mit kapillaren Strömungskanälen sowie Anlage zur katalytischen Reduzierung von Nitrat und/oder Nitrit in mit Wasserstoff beladenem Wasser sowie Verfahren zum Betreiben der Anlage Flow reactor with capillary flow channels and system for the catalytic reduction of nitrate and / or nitrite in hydrogen-laden water and method of operating the system |
| 04/10/1997 | DE19536882A1 Soil substrates or media artificially enriched with semiconductors |
| 04/10/1997 | DE19536585A1 Removal of heavy metal ions from effluent water generated by e.g. galvanising plant |
| 04/10/1997 | DE19536128A1 Filter for water filtration incorporating permanent magnet and magnetic yoke forming aperture through which water flows |
| 04/09/1997 | EP0767279A1 Waste water pump station |
| 04/09/1997 | EP0767171A1 Process stream treatment |
| 04/09/1997 | EP0767143A2 Process and installation for sand removal and physiochemical clarification of municipal and industrial wastes |
| 04/09/1997 | EP0767142A1 Process to avoid formation of black spots on the walls of underground water containers |
| 04/09/1997 | EP0766986A1 Process for the desalination of solvents for gas scrubbing derived from glycol |
| 04/09/1997 | EP0766650A1 Anaerobic removal of sulphur compounds from waste water |
| 04/09/1997 | EP0766649A1 Method and device for generating low voltage electric fields in aqueous solutions |
| 04/09/1997 | EP0766648A1 Process for treatment of a fluid and apparatus therefor |
| 04/09/1997 | EP0766647A1 Photoelectrochemical reactor |
| 04/09/1997 | EP0688301B1 Immersion lamp for a photochemical reactor and its use |
| 04/09/1997 | CN2251778Y Universal strength magnetic tea block |
| 04/09/1997 | CN2251556Y Trace element addition device |
| 04/09/1997 | CN2251555Y Grille plate type magnetic device |
| 04/09/1997 | CN2251554Y Oily waste water centrifugal polymeric device |
| 04/09/1997 | CN1147237A Process and installation for targeted formation of germs or crystals |
| 04/09/1997 | CN1147042A Straw digesting pulp-making process, method and system for recovery of waste wash liquor thereof |
| 04/09/1997 | CN1147012A Technology for recovery of wool grease by flocculating salting out-extracting |
| 04/09/1997 | CN1146977A Water treatment method and apparatus for treating waste water by using ion exchange resin |
| 04/08/1997 | US5618762 Light-weight antibacterial ceramic and antibacterial ceramic filter |
| 04/08/1997 | US5618440 Method and apparatus for treating and disinfecting water and/or wastewater |
| 04/08/1997 | US5618439 Method for purifying industrial sewage water |
| 04/08/1997 | US5618433 Processes for separating and concentrating certain ions from mixed ion solutions using ion-binding ligands bonded to membranes |
| 04/08/1997 | US5618429 Method for reducing slime and film formation in plants in which the water of paper and pulp machines is circulated and in plants in which cooling water is circulated |
| 04/08/1997 | US5618427 Using mixture of fibrous organic material and metal particles; anaerobic process |
| 04/08/1997 | US5618417 Water aeration system |
| 04/08/1997 | US5618411 Fluidized-bed fermenter |
| 04/05/1997 | CA2187066A1 Process for desalting glycol-derived solvents for gas scrubbers |
| 04/03/1997 | WO1997011914A1 Water treatment arrangement |
| 04/03/1997 | WO1997011913A1 Methods and compositions for controlling biofouling using sulfonamides |
| 04/03/1997 | WO1997011912A1 Methods and compositions for controlling biofouling using polyglycol fatty acid esters |
| 04/03/1997 | WO1997011911A1 Methods and compositions for controlling biofouling using thiourea compounds |